10 °C rises in global average temperatures have not only occurred during the last 600 million years, but they are the defining
characteristic of the temperature record over that time.
Not exact matches
Here, we report on local and global changes in MHW
characteristics over time as
recorded by satellite and in situ measurements
of sea surface
temperature (SST) and defined using a quantitative MHW framework, which allows for comparisons across regions and events1.
This study provides a
characteristic archive
of arctic lake ontogeny and a valuable
temperature record from a remote climate - sensitive area
of northern Russia.
Result: the
temperature record we use to define climate contains a random mix
of these
records with distinctly different
characteristics — the ones with 7PM observing time tend to produce warmer climate estimates, the ones with 7AM observing time tend to be colder.
As valuable as the
temperature record may be, the real treasure buried in the ice is a
record of the atmosphere's
characteristics.
If the
record had been a tropical jungle or sea I'd have considered my hypothesis falsfied but so far every prediction made by it fits what has been observed with the sole exception
of the Antarctic interior but that may be due to exceptional
characteristics such as the strong polar vortex, ozone hole, and a
temperature far lower than anywhere else on the planet.
«We evaluate to what extent the
temperature rise in the past 100 years was a trend or a natural fluctuation and analyze 2249 worldwide monthly
temperature records from GISS (NASA) with the 100 - year period covering 1906 - 2005 and the two 50 - year periods from 1906 to 1955 and 1956 to 2005... The data document a strong urban heat island eff ect (UHI) and a warming with increasing station elevation... About a quarter
of all the
records for the 100 - year period show a fall in
temperatures... that the observed
temperature records are a combination
of long - term correlated
records with an additional trend, which is caused for instance by anthropogenic CO2, the UHI or other forcings... As a result, the probabilities that the observed
temperature series are natural have values roughly between 40 % and 90 %, depending on the stations
characteristics and the periods considered.»
As I have been noting, ad nauseum, anthropogenically caused / managed energy flux, and anthropogenic modifications
of surfaces, flora and other environmental
characteristics, are a specific term (or set
of them) affecting the overall energy balance and apparent surface and low tropospheric
temperature record.
Like a growing number
of extreme weather events, an increase in the number
of record - high
temperatures — and a concomitant decrease in the number
of record lows — is
characteristic of a warming world.
So the repainting
of thousands
of Stevenson screens worldwide with paints
of uncertain infrared
characteristics was another bias that has crept into the instrumental
temperature records.